Printing-press.



No. 732,523. PATENTED JUNE '30, 1903.

D. I. EcxERsoN. PRINTING PRESS.

. APPLICATION FILED HAY 23, 1902. N0 MODEL y 5 SHEETS-SHEET 1.

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30,732,528. PATENTBD 'JUNE so, 1903.1`

D. LEGKERSON.-

PRINTING 4PRESS. A APPLIoATIoN FILED nu 23. 1902.

No MODEL. A sums-sumar z.

No. 732,528. l PATENTED JUNE 30, 1903.

' D.'I. EGKERSON.

PRINTING-PRESS.

AgPPLmMIoN FILED un 23.1902.

NO MODEL. v 5`SHBETS-SHBET 3.

nf 74 D.' 3

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No. 732,528. 'PATBNTBD JUNE 3o, 190s. D. I. EGKBRSON.

]5RI1\T1I1\TG PRESS.

APPLIQATION FILED MAY z3. 1902. No MODEL. 5 SHEETS-Smm 4.'

TN: Nomlls Pzrzns co, PHoToLITHmwAsNINaToN, D. c.

No. 732,528. PATENTED JUNE 30, 1903.

D. I. EGKBESQN. PRINTING PRESS.

PPLIAQTIGN FILED MAY 23. '1902.

5 SHEETS-SHEET 5.

N0 MODEL.

' Jr' .i

i l? zo 5 I I f gnvanl'oz' q/vih'leoea l' 5M 1 ww@ 4 Gttoznmj bed at the upper limit of its movement.

6 is a similar view with the type-bed at the-` Patented June so, 190e.

PATENT OFFICE.

DAvID I. EoKERsoN, oF WORCESTER, NEW YoRir.

PRINTING-PRESS;

SPECIFICATION forming part of Letters Patent No. 732,528, dated une 30, 190.5.

Application filed May 23, 1902. Serial No. 108.712. (No model.)

To all whom t may concern:

Be it known that I, DAVID I. EoKERsoN, a citizen of the United States, and a resident of Worcester, in the county of Otsego and State of New York, have invented certain new and useful Improvements in Printing-Presses, of which the following is a full, clear, and exact description, such as will enable those skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, .forming a part of this speciiication.

This invention relates' to improvements in printing presses of that class which print upon a web drawn from a roll and in which the impression is made between two flat surfaces, one of which is movable.

lt consists in the novel constructiomcombination, and arrangements of parts such as will be hereinafter fully described, and pointed out in the appended claims.

In the drawings, in which similar reference characters designate corresponding parts, Figure 1 is a side elevation of a press embodying the invention. Fig. EZ'is a similar view showing the side opposite to that shown in Fig. l. Fig. 3 is a detail view, broken away in parts, showing the intermittent-feed rolls and the rotary cutters for slitting` the web. Fig. 4 is an end view of the press, broken away in parts. Fig. 5 is a detail view showing the operative mechanism with the typelower limit of its movement. Fig. 7 is a detail view showing one of the yokes for connecting the side frames of the inking-carriage.`

Fig. S is a detail view showing a plan of the frame of the inking-carriage. Fig. 9 is a side elevation of the same. Fig. lO is an end view of the type-bed. Fig. ll is a side elevation of the same.

The framework supporting the several opl .ings l2.

bed l and the other is the stationary platen 2. Both members are arranged horizontally, one above the other, with the platen upper most. The type-bed is reciprocated vertically and is guided by the flanges 3, engaging with bed consists of the upper and lower cam-- racks 5 and G, respectively, arranged in pairs,

suitable recessesin the frame of the machine.

with a lower cam-rack meshing with an upper one. Each cam-rack is in the form of a mutilated segmental gear, consisting of the diverging arms 7, connected at their outer ends by the curved rack 8. The upper camracks 5 are pivoted at the converging point f of their arms to the under side of. the typebed between the lugs 9 by the bolts 10, and the lower cam-racks 6 are secured on the shaft ll, passing through the lower part of the machine and journaled at its endsin the bear- To hold them in their proper positions on the shaft, the lower cam-racks are placed between the lugs 13, which also form additional bearings for the shaft ll. The rack part of each cam-rack is mutilated. For about one-half of its length, as from a to l), its curvature is concentric with the pivotal point of the cam-rack, and for the other part, as from b to c, its curvature is eccentric as it is gradually projected beyond the concentric line. The relative arrangement of two engaging cam-racks is such that when they are roclied the concentric part of one meshes with the concentric part of the-other and the eccentric part of one engages with the eccentric part of thev other. By this means the cam feature is secured. vBy oscillating the cam-racks the type-bed is reciprocated vertically; During vhalf an oscillation inone direction-say from the position shown in Fig. 6 to the position shown in Fig. l-there is no movement of the type-bed as the concentric parts of the cam-racks are engaged;

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but during the remainder of the oscillationsay from the position shown in Fig. l to that shown in Fig. -the type-bed is moved toward the platen as the eccentric parts of the camracks are engaged. Bymeans of the camracks the type-bed is reciproeated with comparatively little jar or shock, and the machine, even when operated at a high rate of speed, has but little vibration. Mechanism for simultaneously oscillating the cam-racks is provided. On the main driving-shaft 14, driven by the pulley 15, is the pinion 1U, meshing with the gear 17, secured on the shaft 1S, j ournaled in suitable bearings in the frame of the machine. A connecting-rod 1S) is journaled at one end on the wrist-pin 20,projecting from the side of the gear 17, and at the other end is connected with the sleeve 21 on the shaft 22, connecting the two lower cam-racks 6. Vhen the gear 17 is rotated through the connecting-rod or pitman 19, the cam-racks are sim ultaneously rocked back and forth, and the type-bed is thereby reciprocated. On the downward movement of the type-bed it is cushioned bythe springs 23 on the rods 24. These springs also serve to sustain to some extent the weight of the type-bed, and thereby render an easier movement of the same. The carriage on which Jthe inking-rolls are mounted consists of the side frames 25, connected by the yokes 2G. In the outer faces of the side frames are the grooves 27, which register with the iianges 28, projecting from the fra-me of the machine and extending through the length of the path of travel of the carriage. On opposite sides of the type-bed and in the path of travel of the hiking-carriage are the hiking-tables 29, one of which, as shown by dotted lines in Fig. 1, is provided with the usual inking mechanism. The inkingrol1s mounted on the carriage are of the usual construction. The carriage is reciprocated back and forth over the type-bed for each impression, thereby insuring a thorough inking of the type. From the under side of the carriage project the lugs 30. Rods 31 connect these lugs with the free ends of the levers 32, carried by the shaft 11, on which the lower cam-racks G are mounted. As the cam-racks are rocked back and forth the levers are oscillated with them and move the carriage back and forth over the type-bed.

A continuous feed for drawing the web from the roll is provided. The roll of paper 33 is mounted on the shaft 34, journaled in the brackets 35, secured to one end of the machine. The web is continuously drawn off the roll by the eontinuously-rotated rolls 3G. 'lhe lower one of these rolls is driven by the shaft S7, through the bevel-gear 38, and the shaft is rotated by the friction wheel 39, splined thereon and engaging with the friction-disk 40011 the shaft 41, j ournaled in suitable bearing in the frame of the machine. The periphery of the f riction-disk is provided with teeth which engage with the gear 42 on the shaft 1S, driven from the main drivingshaft 14 by the pinion 113 and the gear 17. By moving the friction-wheel relatively to the friction-disk the rotation of the rolls 3G can be regulated to draw more or less of the web from the paper-roll. A shaft 43, journaled in suitable bearings, is screw-threaded at one end and engages with the sleeve 44, provided with a yoke 45, registering with the circumferential groove in the hub of the friction-wheel. By turning the shaft 37 through the intervening mechanism the relative positions of the friction-wheel and the frictiondisk can be adjusted. rlhe web on leaving the paper-roll passes between the f eed-rolls 3 e, through the tension-bars 46, of the usual con- ;struction, over the roll 47, mounted on the `frame of the platen, to the impression mechanism. As the feed of the web between the -impression members is intermittent and very quick, the web is looped between the continuously-operated rolls 3G and the tensionbars 4G, so that it can be easily drawn between the impression members by` the intermittent feed. By adjusting the tension-bars 46 the resistance of the web-tothe actioniofl the intermittent-feed rolls can be regulated, so that the paper willbe heldwith sufficient force to avoid any slack between the impression members.

The carriage 4S is adj ustably mounted'on the frame of the machine. It is movediinlits adjustments by the screws 4f) engaging with the lugs 50, projecting from the under side of the same. The screws 49 are turned by the shaft 51, with which they are connected by the bevel-gears 52. A hand-wheel 53 is provided for rotating the shaft 51. In the slots 54 in the standards 55, mounted on the earriage 48, are jour-naled the ends of the shaft `of the roll 5G. This roll, together with the marginal rolls 57, engages the web and intermittently feeds it between the impression members. The marginal rolls are adjustable on the shaft 5S, joui-naled at its ends in the boxes 5S), movable in the slots 54- inthe standards 55. By the set-screws GO impinging on the boxes 59 the force with which the rolls will engage the paper can be regulated.

The roll 5G is provided with mechanism for intermittentlyrotating the same. On the end of the shaft of the roll is secured the ratchetwheel (51, with which engages the spring- `pressed pawl (S2, carried by the arm G3, secured to the gear (S4, loosely journaled on the shaft. W'ith the gear G4 engages the rack (35 on the rod (Se. The rack is held in engagementwith the gear by the yoke G7, pivotedon the shaft of the roll. The lower end of the rod is j ournaled on the wrist-pin projecting from the block GS, adjustable in the guide-strip 439, secured to the gear 42 on the shaft 18. As the gear is rotated the rod reeiprocated and IOO through the intervening mechanism intermittently rotates the feed-rolls 515 and 57. As the rod is reeiprocated it is also oscillated. As the yoke (i7 is pivoted on the shaft of the roll 5G, the oscillation of the rod will not be interfered with. By adjusting the block 08 in the guide-strip (39 the length of the stroke of the rod can be regulated so as to give more or less rotation of the feed-rolls anda corresponding regulation of the feed of the web between the impression members.

Rotary cutters 70 are provided for slitting the web. These cutters are movably mounted on the shaft 71, journaled in the hangers 72, pivoted to the frame of the machine, and can be adjusted transversely of the path of travel of the web, so that strips of different widths can be cut. By means of the hinged hangers the shaft can be moved either to bring the cutters into engagement with the roll 56, so that the paper passing between the cutters and the roll can be slit, orto move the cutters clear of the paper. By means of the set-screws 7 3 passing through the hubs in which the hangers are pivoted and impinging'on the bearings of the hangers the rotary cutters can be secured in'the positions to which they may be moved.

A knife 74 is provided for cutting the web into sheets. It is 'mounted at its ends in the guideways 75 on the standards 55 and is vertically reciprocated by the rods 7 6, connecting its ends with the arms 77 on the shaft 7S, journaled in the hangers 79, projecting from the under side of the carriage 4S. The shaft is rotated by the lever 80, extending from it intermediate of its ends. The free end of the lever is pivoted on the shaft 81, carrying the blocks 82.- The latter are movable in the slotted brackets 83, secured to the under side of the type-bed l. As the type-bed is reciprocated the lever SO is oscillated and through the intervening mechanism theknife is moved up and down to cut the web over the bar or anvil S-l. Owing to the elongated slots in the brackets 83, the operation of the knife will not `be affected by the adjustment of the carriage LIS.

On the top of the platen'Z is the table 85 for receiving the severed sheets. A stop S6 is provided for holding the sheets on the table. This stop may be adjustable to accommodate the table to sheets of different sizes. By mounting the receiving-table on the platen the space occupied by the machine is consid# erably economiz'ed. h

By means of the adjustable carriage 48 the intermittent-feed and the cutting mechanisms can be moved to accommodate the press to size of the sheets to be printed.

Having thus described myinvention, what I claim, and desire to secure `by Letters Patent, is-

l. In a-printing-press, the impression mechanism consisting of movable and fixed members, ya pair of cam-racks ypivoted to the movable member, a pair of cam-racks pivoted to a fixed `part of the machine'and engaging with the cam-racks pivoted to the movable member of the impression mechanism, coupling mechanism connecting the cam-racks pivoted to a fixed part of the machine, and operative mechi anism connected with said coupling mechanism for simultaneously oscillating the camracks pivoted toa fixed part of J[he machine.

2. In a printing-press, the impressionme'chanism consisting of movable and fixed members, a pair of cam-racks pivoted to themov- 1able member, a pair of cam-racks pivoted to a fixed part of the machine and engaging with said cam-racks pivoted to the movable member, a shaft coupling together the cam-racks pivoted to a fixed part of the machine, a sleeve j ournaled on said shaft, av rod connected with said sleeve, and means for reciprocating said rod.

3. In a printing-press, the impression mechanism consisting of movable and fixed members, opposite engaging cam -racks respectively pivoted to the movable member and a fixed part of the machine,each'cam-rack having its rack concentric with the pivotal point l of the cam-rack for part of thel length of the rack and the remainder eccentric, and means for oscillating said cam-racks.

4. In a printing-press,the impression 'mechanism consisting of movable and fixed members, opposite engaging cam-racks respectively pivoted to the movable member and'to a fixed part of the machine, each cam-rack having its rack concentric with the pivotal point of the cam-rack forpart of the length of the rack and the remainder eccentric, means for oscillating said cam-racks, an inkving-carriage adapted to travel between said movable and fixed members and operated by v said cam-racks, and means for intermittently feeding a web of paper between said movable and fixed members.

IOO

' 5. In a printing-press, the movable member of the impression' mechanism, opposite engaging cam-racks for reciprocating said member each being in the form of a segmental gear with the line of its teeth'mutilated so that when the cam-racks are moved'the dis; tance between their pivotal points will vary, and means for oscillating said cam-racksl 6. In a printing-press, the impression mechanism consisting of fixed and movable'members, cam-racks for reciprocating the movable member, means for rocking said cam-racks, and an inking-carriage adapted to travel between said members and operated by said cam-racks.

7. In a printing-press, the impression mech'- anism consisting of fixed and movable members, a cam-rack pivoted to the movable member, a rotatable shaft, a second cam rack mounted on said shaft and engaging with the 'cam rack pivoted to the movable member,

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means for rocking saidy cam-racks, a lever carried by said shaft, and an inking-carriage adapted to travel between 'said impression l members and connected with said lever.

8. In a printing-press, the impression mechanism consisting of a type-bed and aplaten l with one of said members movable relatively to the other, cam-racks for reciprocating the movable member, means for oscillating said cam-racks, an inking -carriage .adapted to travel between said type-bed and said platen and operated by said cam-racks, and mechanism for intermittently feeding a web of paper between said type-bed and said platen.

E). In a printing-press, the impression meehanism consisting of a type-bed and a platen with one of said members movable relatively to the other, cam-racks for reciprocating the movable member, means for oscillating said cam-racks, an inking carriage adapted to travel between said type-bed and said platen and operated by said lcam-racks, a carriage adjustable along the path of travel of the web of paper through the machine, a roll journaled in said adjustable carriage for engaging with the web, and means for intermittently rotating said roll to intermittently feed the web between said type-bed and said platen.

l0. In a printing-press, an adjustable carriage, a reciprocal knife mounted on said carriage, the impression mechanism consisting of fixed and movable members, means for reciprocating the movable member, a slotted bracket attached to the movable member, a block movable back andforth in the slot in said bracket, a shaft, a lever secured on said shaft and connected with said block, an arm carried by said shaft, and a rod connecting said arm with said knife.

Il. In a printingpress, the impression mechanism consisting of iixed and movable members, means for reciprocating the movable member of the impression mechanism, mechanism for intermittently feeding a web of paper between the members of the impression mechanism, a reciprocal knife mounted adjacent to the path of travel of the web for severing the latter, a lever pivoted intermediate of its ends and having a sliding connection at one end with the movable member of the impression mechanism, and a rod connecting the other end of said lever with said knife.

l2. In a printing press, the impression mechanism consisting of fixed and movable members, means for reciprocating the movable member of said impression mechanism, mechanism for intermittently feeding a web of paper between the members of the impression mechanism, a carriage adjustable along the path of travel of the web, a reciprocal knife mounted on said carriage adjacent to the path of travel of the web for severing the latter, a lever pivoted to said carriage and having a sliding connection at one end with the movable member of the impression mechanism, and a rod connecting the other end of said lever with said knife.

I3. In a printing press, the impression mechanism consisting of a type-bed and a platen with one of said members movable relatively to the other, opposite engaging eamracks respectively pivoted to the movable member and to a fixed part of the machine for reciprocating the movable member, each camrack having its rack concentric with the pivotal point of the cam-rack for part of the length of the rack and eccentric for the remainder, means for oscillating said camracks, and mechanism for intermittently feeding a web of paper between said type-bed and said platen.

la. In a printing press, the impression mechanism consisting of a type-bed and a platen with one of said members movable relatively to the other, opposite engaging camracks respectively.pivoted to the movable member and to a xed part of the machine for reciprocating the movable member, each camrack having its rack concentric with the pivotal point of the cam-rack for part of the length of the rack and eccentric for the remainder, means for oscillating said camracks, a carriage adjustable along the path of travel of the web of paper through the machine, a roll j ournaled in said carriage for engaging with the web, and means for intermittently rotating said roll to intermittently feed the web between said type bed and said platen.

l5. In a printingpress, the impression mechanism consisting of movable and fixed members, means for reciprocating the movable member of the impression mechanism, a carriage adjustable along the path of travel of the web of paper through the machine, a roll journaled in said carriage for engaging with the web, mechanism for intermittently .rotating said roll to feed the web between the members of the impression mechanism, a reciprocal knife mounted on said carriage adj acent to the path of travel of the web for severing the latter,I a lever pivoted to said carriage and having a sliding connection at one end with the movable member of the impression mechanism, and a rod connecting the other end of said lever with said knife.

I6. In a printing press, the impression mechanism consisting of a type-bed and a platen with one of said members movable relatively to the other, cam-racks for reciprocating the movable member of the impression mechanism, means for oscillating said camracks, an inkin g-carriage adapted to travel between said type-bed and said platen and operated by said cam-racks, a carriage adjustable along the path of travel of the web of paper through the machine, a roll journaled in said adjustable carriage for engaging with the web, mechanism for intermittently rotating said roll to intermittently feed the web between said type-bed and said platen, a reciprocal knife mounted on said adjustable carriage adjacent to the path of travel of the web, and mechanism adj ustably connecting said knife with the movable member of the impression mechanism to operate said knife to sever the web.

I7. In a printing press, the impression mechanism consisting of amovable type-bed and a fixed platen horizontally arranged one above the other with the platen uppermost, a receiving-table placed on said platen, camracks for reciprocating said type-bed, means for oscillating said cam-racks, an intermit- IOO IIO

tent feed mechanism for intermittently feed-l ing the web of paper between said type-bed and said platen onto said table, and mechanism for cutting the paper into sheets as it is deposited on said table by said feed mechanism.

18. In a printing press, the. impression mechanism consisting of a movable type-bed and a fixed platen horizontally arranged one above the other with the platen uppermost, a receiving-table placed on said platen, camracks for reciprocating said type-bed, means for oscillating said cam-racks, a carriage adjustable along the path of travel of the web of paper through the machine and relative to said table, a roll journaled in vsaid carriage for engaging With the web, mechanism for intermittently rotating said roll to intermittently feed the web between said type-bed and said platen onto said table, a reciprocal knife mounted on said carriage adjacent to the path of travel of the web, and mechanism adjustably connecting said knife with said type-bed to operate said knife to sever the end of` the web as the paper is delivered onto said table.

19. In a printing press, the impression mechanism consisting of a movable type-bed and a iixed platen horizontally arranged one above the other with the platen uppermost, a receiving-table placed on said platen, means for reciprocating said type-bed, a carriage adjustable along the path of travel of the web of paper through the machine and relative to said table, a roll j ournaled in said carriage for engaging with the web, mechanism for intermittently rotating said roll to intermittently feed the web between said type-bed and said platen onto said table, a reciprocal knife mounted on said carriage adjacent to the path of travel of the web, a lever pivoted to said carriage and having asliding connection at one end with said type-bed, and a rod connecting the other end of said lever with said knife to operate the latter to sever the end of the web as the paper is delivered onto said table.

20. In a printing press, the impression mechanism consisting of movable and fixed members, opposite engaging camracks respectively pivoted to the movable member of the impression mechanism and to a xed part of the machine, each cam-rack having its rack concentric with the pivotal point of the camrack for part of the length of the rack and the remainder eccentric, means for oscillating said cam-racks, mechanism forintermittently feeding a web of paper between the members of the impression mechanism', and areciprocal knife mounted adjacent to the path of travel of the web and connected with the movable member of the impression mechanism and operated by the latter to sever the web.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

` DAVID I. EOKERSON.

Vitnesses:

BrRNEY GooDENoUeH, JOHN C. WALKER. 

